Machine for fastening the meshes of mended knitted ware



Aug. 15, 1950 M. A. PRODEL MACHINE FOR FASTENING THE MEsHEs OF MENDED KNITTED WARE Filed June 25, 1947 5 Sheets-Sheet l Aug. l5, 1950 M. A. PRDEL MACHINE FOR FASTENING THE MESHES 0F MENDED KNITTED WARE 5 Sheets-Sheet 2 Filed June 25. 1947 T23 l v 595 Aug. 15, 1950 M. A. PRO

MACHINE FOR FAS DEI. 2,518,638 TENING THE MEsHEs NIT OF MENDED K TED WARE Filed .june 25, 1947 s sheets-sheet 5 y d? ,W70/wey Patented Aug. 15,2195() V4umrial). srA'rrzs PATENT oFFlcE f y [12,518,633 f b f Alllauricelexanllre Prode'l, :B'os 'Colonibes, France2 Application June '25, 194@7,1Se1"ial No. L7 56,831

' In France July 9, 1946 (cite-2.)

. 1 y, The .invention .relates to a machine for fasten-ing .the Y,meshes of knitted ware after .mend, ing -chielyin the case 'of meshes -of .mended silk, -nylon or .the likefstockngs It is .known that .if

:one orA more threads r`of 'a :stocking -or the 4like f imitted ware break .tree*ifortuitonsly and. as .1a consequence one. or Vmore meshes @become loose, -the obi'ect `is generallygrepaired through hand xmonding by 'means 'of' a fhofok or =else1=by` Ymeans fof `:a.,.line'ndingY `machine; In bothcases ofi hand-operated :and machineeoper'ated. mending, `Aitis Inecsessafy-on'ce the meshes :haveoeen picked up, in principle both lsides :oi :the tear toibo .reparedfito fasten the picked up meshes, that iis 'Ito Ypass through fsaid meshes .2a thread Vreplacing.the vfbrohen thread in order lio-Secure .together the .pickednp meshes. L

"athis .fastening .operation oi the .meshes is iper- ?formedagenenallyfthy hand tand constitutes .a -delisiate Loperation which 'it is :difficult to. execute `in =a practicallyinvisble manner. s

)The inventionfhas e-for Aitsnoloiect-a.ma'chir1e for executing mechanically in a perfect manner said .fastening operation. I .1 v The principal features and advantages o'fthe V'.'lm/'ention will 'appea'r. in .the ifollowing `description I`'given withireterencex-to vfaccompanying drawings illustrating diagrainrnatically 1and merely hiv way of example one form of execution of the ymach-ine ,fior .fastening the meshes. In said :drawings Fig. l1-isa vertical cross sectional ,View :of the machine, @the crossrsection being executed through n VFig. 721s ya view illustrating the operationof the machine. Y .A Y

Fig. ai lis a :fragmentary A,sectional View taken along-line VIII--V-III--ofVFig-- 2, fbut yonanenlarged scale. ,.7 v

Eig.- 9 is a :perspective detail-view of -the thread Ath'r ceded-in.theineshesg.and A.

`;-1"i7g. `1"() isfa schematic elevational -vievv` of L,tljle underside of thetoothedracks o fFigfSLh I v Referring to. the drawings, the machine irr- .414 Claims.

vcludes a hollow `frame -l ,forming a supporting upright 'made -ofa suitable moulded material. V."I-hisfrarne carries at -a suitable point of its height .a control shaft V2` provided with the driving crank 9'3 on, the `outside of the frame 5l. To the shaft and approximately .in the middle of its Vlength .isXed-"a toothed wheel 4 called hereinafter the ina-in control wheel, Y

Y-the other members yof vt-he mach-ine that 'will :be disclosedv hereinafter are mounted on a plateS-seouredby means of screws to the frame fl and vforrn'ing a sor-t of cover 4for said frame. As apparentxfiiorn Fig. =3 said cover when secured in placevforms With-the .horizontal an langle vof about 30. The 'work supporting carriage is constituted hy aib-lockt of triangular rcross-section provided with fa base .6 ,slidingly mounted in the dove- -taliledzgroove f1 provided in Athe .plate 5. Under- ,.n'eath 'said loase 6 'are provided two parallel i'langes :8 :and :S Aspaced. with reference to one --another and engaging 'a slot l0 provided in the plate ,f5 in the middle of :and almost throughout the length 'of the bottom of the vgroove 1. The '.flower surface =`of each :of the anges 8 and 9 is 'provided with teeth 'H the width a (Fig. l0) of which .is :practically-'equal to that of the mesh of the mended ware the .meshes lof which are to fbe fastened.

Similarly, reach groove or recess, vformed between the ft'eeth :'I., Ihas'a Widthb (Fig. 10) that is equal tot-he tooth 'widtha land is .thus equal Ato 'th-'e Width of fa mesh. The teeth Il! o'f the change .'8 iare stag-gered or -oIT-se't yfor the distance "c from theteeth vIl of thevflange `Si; the :distance -c (Fig. l'i) @equalsonehalf the ydimension of a or b and thus equals -one-lralf 4of the width of a "mesh. Y v 1 'Twofsymmetrical catches 12 `and 'I3 connected .together by means eof ra .-springfl'i cooperate with fthe teeth tH formed fon the iianges 8 and 9 re- .:spectively.; zsa'idfcatchesare 'piyotallyfsecured to ,-ingtooth.formedon the otherlange.

l v,'Ihe Hcarriage .is constantly submitted to the action of a tractional arrangement constituted fby a .rilbonorgstrip ,secured atone end to the atiae 3 block 6 and at its other end to a spring casing I9 carried by the flange I1. The catch I2 or I3 engaging the teeth of the ange 8 or 9 with which it cooperates holds the carriage fast with reference to the frame. Each catch I2 or I3 is moreover engaged by the end of a pivoting lever 20 or 2l, The ends of these levers which are opposed to the ends engaging said catches project through suitable slots to the outside of the frame i. These levers 20 and ZI have for their object to allow a disengagement and a spacing of the catches I2 or I3 with reference to the teeth on the iianges 8 and 9 whereby it is possible for the carriage to progress under Vthe action of the l spring casing I9 and on the other hand to be returned rearwardly in antagonism with the action of said spring casing.

As best shown in Fig. S a pivoting shutter or and 25 thereof, and being provided with a slider sloping surface of the block 6 on the outside of the plate 5,'said shutters being operable by the corresponding levers 24 or 25 and the shafts 24 and 25 thereof, and being provided with a slider 26 or 21 as the ease may be. These shutters are adapted to position on the carriage bradawls 28 removably engaging each picked up mesh to be fastened, as shown in Fig. 8. These bradawls are formed as shown in Fig. 4 by a flat wire the width of which is substantially equal to that of a mesh or tooth II said wire being bent at one end that is folded back and ends with the projection 29. The latter-is adapted to engage either of the two grooves 38 or 3l formed in parallelism with one another at the upper part of the triangular block 6.

The drive of the thread which is to fasten the picked up meshes is ensured through a needle 32 showing as illustrated in Fig. 6 a centrally located eye 33 and two sharp tips or points 34 and 35. This needle may be taken hold of at either end through the corresponding driving mechanism constituted by a member 36, provided with extensible jaws and housed inside a tube 31, said member being submitted to the action of a spring 38 (Fig. 5). On the inner surface of the tube 31 which tube is slidingly carried in a bearing 39 rigid with the upper surface of the plate 5, is arranged a rack 48 engaging a toothed sector shown at 4I for the right hand side mechanism and at 4I for the left hand side mechanism (Fig. 3).

The sector 4I is driven by a connecting rod 42 provided with a slot 43 engaging a stud 44 rigid with a toothed wheel 45 which latter meshes with the main control wheel 4. A tweezer shaped spring 46 connects a point rigid with said connecting rod 42 with the'stud 44.

Similarly the sector 4 I is driven by a connecting rod 41 provided with a slot 48 engaged by a stud 49 rigid with a toothed wheel 58 identical with the wheel 45 and meshing therewith. A tweezer shaped spring 46 also connects a point rigid with the connecting rod 41 with the stud 49.

The sector 4I ylies in the same plane as the catch I2 and the sector 4 I lies in the same plane as the catch I3, each of said sectors'being adapted tion of the corresponding catch I2 or I3.

If a, b, and c'and a', b', c (Fig. 7) designate the meshes picked up on a knitted ware such as a stocking and if it is desired to fasten said meshes by means of a thread f passing through said meshes, the fastening operation is obtained as follows, taking into account that as the mending is proceeded with, the last loop is held fast by means of a bradawl 28 whereby at the moment of 65 to act on the tail end 5I or 52 forming an exten- 4 fastening the picked up meshes the latter may be each provided with its bradawl.

The bradawls corresponding to the meshes a, b, c, and those corresponding to the meshes a', b', c are arranged on the carriage in a manner such that the tips of the bradawls corresponding to the former meshes may lie for instance in the groove 30 and those of the bradawls corresponding to the latter meshes in the groove 3I. The bradawls of each face of the carriage 6 are held fast through pressure of the covers 22 and 23 and are pressed against one another by the sliders 26 land 21. It should be noticed that in this position the bradawls lying in one of said grooves lie one-half breadth or one-half mesh ahead of those lying in the other groove, the stocking B being held vertically substantially as shown in Figs. 3 and 8. The staggered or off-set positioning of the bradawls 28 of one face of the carriage 6 relative to those of the opposite face, for a onehalf mesh width, is brought about by the provision of stops at the left end (Figs. 1 and 2) of the carriage towards which the bradawls are pressed in the direction D by means of the mutually operated sliders 26 and 21, which stops (not shown) project towards the right for distances diiering by a one-half mesh distance.

When the machine starts, the carriage is located with reference to the needle 32 in a manner such that said needle may pass through the meshes a and a held fast by the two rst bradawls. To make the thread f pass through the different meshes it is simply necessary to rotate the crank 3.

The rotation of the crank 3 will cause the sector 4I (in the position shown in Fig. 3) to move the right hand tube, that is controlled thereby, to the right in the direction A. Simultaneously, the sector 4I' will tend to move the left hand tube 31 thereof also to the right. While the right hand tube 31 will move in its entirety to the right, the left hand tube, though, will move to the right only with one part and for a certain distance, but the remaining part consisting of a shoulder, a screw carried thereby, and the expansion jaw 36 thereof, will be prevented from moving, and this will cause the jaw to open and to release the needle 32 that was held therein at its end portion 34.

The rightward movement of the right hand tube 31 will release the jaw mechanism thereof and will cause the end portion 35 of the needle 3 2 to be gripped by the jaw under the impulse vof the spring 38. During the rightward move- Ahand tube 31, the sector 4I will release the catch I2 by actuating the tail end 52 of said catch I2 with the notch of said sector 4I, thereby rocking said catch I2 counter-clockwise (Fig. 3) and disengaging the catch from the rack II of the iiange 8. This release will enable the spring powered ribbon I8 to move the carriage 6 in a direction towards the axis of the aligned tubes 31 (direction D-Fig. 2), for a distance corresponding to c (Fig. v10) which is one-half of the width of a mesh; after the carriage 6 has moved for that distance, the catch I3 which has been disposed on the exterior of the teeth of the ange 9 will drop into the next groove of the rack II ward, twoA racks arranged longitudinally on the surface of the carriage that is not in contact with the knitted ware, two pivoting catches adapted to engage ,in alternation the two racks, the two racks comprising teeth spaced by intervals equal to one mesh of the ware and the teeth of each rack offset for a distance of one-half tooth width from the teeth of the other rack, a spring connecting the vtwo catches together for urging them into their operative positions, pivoting members adapted to act on the corresponding catches for releasing them with reference to the corresponding rack teeth and controlled from the outside of themachine and a needle adapted to move reciprocatingly inra direction perpendicular to the direction of progress of the carriage and to pass the fastening thread through the mended meshes. 2 7. A machine for fastening the meshes of mended knitted ware comprising a work supporting carriage, a stationary spring case the spring of which is adapted to drive said carriage constantly forwards, means for transforming said drive into an intermittent progression through half meshl distances and a needle adapted to move reciprccatingly in adirection perpendicular to the directional progress of the carriage and to pass the fastening thread through the mended meshes.

8. `A ,machine for. fastening the meshes of mended knitted ware comprising a work supporting carriagerprovided with two parallelgrooves to ,either side of its longitudinal axis, bradawls adapted to engage the last loops of the mended meshes and engaging the corresponding groove, means vfor intermittently causing said carriage to advance through a length corresponding to one-halfmesh of the ware and a needle adapted to move reciprocatingly in a direction perpendicular to the direction of progress of the carriage and .to pass the fastening thread through the mended meshes, said meshes being held by the corresponding bradawls.

H9. lA machine for fastening the meshes ofV mended knitted ware comprising a work supporting carriage provided with two parallel grooves to either side of its longitudinal axis, bradawls adapted to engage the last loops of the mended meshes and engaging the corresponding groove, pivoting shutters adapted to urge the bradwals against the carriage, sliders urging the bradawls cooperating with one groove of the carriage 'against one'another, means for intermittently causing saidl carriage to advance through a length corresponding to `one-half -mesh of the ware and a needle adapted to move recipr'ocatingly in a direction perpendicular tothe direction of progress 'of the carriage and to pass the fastening thread through the mended meshes, said meshes being held by the corresponding bradawls.

10.A machine for fastening the meshes of mended knitted ware comprising a work supporting carriage provided with two parallel grooves to either side of its longitudinal axis, bradawls adapted to engage the last loops of the mended meshesand engaging the corresponding groove,

said bradawls being constituted by a flat bent thread through the mended meshes, said meshes being held by the corresponding bradawls.

y 11.V A machine for fastening the 4meshes of mended knitted -Ware comprising'a work supporting carriage provided with ltwo parallel lgrooves to either side of its longitudinal axis, bradawlsadapted to engage the last loops of the mended meshes and engaging the corresponding groove, pivoting shutters adapted to urge the bradawls against the carriage,`sliders urging the Ibradawls cooperating with one groove of the carriage against one another, the bradawls cooperating with one carriage groove being oil-set for one-half their breadth with reference to those of theother carriage groove, means for intermittently causing said carriage to advance through a length corresponding to one-half mesh of the ware and a needle adapted to move reciprocatingly in a, direction perpendicular tothe direction of progress of the carriage and to pass the fastening thread through the mended meshes, said meshes being held by the corresponding bradawls. Y

12. A machine Vfor fastening the meshes of mended knittedware comprising a work supporting carriage, means for intermittently causing said carriage to advance through a length corresponding to one-half mesh of the ware, a needle including a central eye and two terminal sharp tips adapted to move reciprocatingly in a direction perpendicular to the direction of progress of the carriage and to pass the fastening thread throughthe mended meshes, jaw members located to either vside of the needle and adapted to move perpendicularly to the movement of progress of the carriage and to take hold alternatingly of the sharp' tips of the needle, tubular members provided'with rack teeth on their outside and inside which is fitted the corresponding jaw memberga toothed sector meshing with each last mentioned rack, a central driving pinion, gear wheels driven by the latter and connecting rods' operatively connecting the gear wheels with the toothed sectors.

13. A machine for fastening the meshes of mended knitted ware comprising a work supporting carriage, means for intermittently causing said carriage to advance through a length corresponding' to one-half mesh of the ware, a needle including a central eye and two terminal sharp tips adapted to move reciprocatingly -in a direction perpendicular to the direction of progress of the carriage and to pass the fastening thread through the mended meshes, jaw members located to either side of the needle and adapted to move perpendicularly to the movement of progress of the carriage and to take hold alternatingly of the sharp tips of the needle, tubular members provided with rackV teeth on their outside and inside which is fitted the corresponding jaw member, a toothed sector meshing with each last mentioned rack, a central driving pinion, gear wheels driven, by the latter, a slotted connecting rod pivotally secured toeach toothed sector,.a stud rigid with each gear wheel engaging the slot` of the corresponding connecting rod and a spring member connecting the connecting rod with the Wheel stud.

14. A machine for fastening the meshes of mended knitted ware comprising a work supporting carriage, means-for intermittently causing saidcarriage to advance through a length corresponding to one-half mesh of thev Ware includ- ,ing means for urging continuously the carriage forward, two racks arranged longitudinally. on

9 the surface of the carriage that is not in contact with the knitted ware, two pivoting catches adapted to engage in alternation the two racks, the two racks comprising teeth spaced by intervals equal to one mesh of a Ware and the teeth of each rack off-set for a distance of one-half tooth width from the teeth of the other rack, a needle including a central eye and two terminal sharp tips adapted to move reciprocatingly in a direction perpendicular to the direction of progress of the carriage and to pass the fastening thread through the mended meshes, jaw members-located to either side of the needle and adapted to move perpendicularly to the movemeiity of progress of the carriage and to take hold1 alternatingly of the sharp tips of the needle, tubular members provided with rack teeth on their. outside and inside which is tted the corresponding jaw member, a toothed sector meshing withy last mentioned rack teeth on the corresponding tubu- 20 10 lar member, a central driving pinion, gear wheels driven by the latter, connecting rods `operatively connecting the gear wheels with the toothed sectors and means whereby by each toothed sector controls at each cycle of operation the correspending catch for releasing it with reference to the cooperating rack teeth.

MAURICE ALEXANDRE PRODEL.

vREFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 

